Beacon-based localization and emergency communication system: Design and implementationOA

Rapidly locating and rescuing survivors and retrieving the black box after civil aircraft crashes on land or at sea is a critical requirement in modern aircraft design.To address the limitations of traditional fixed Emergency Locator Transmitters(ELTs),such as insufficient positioning accuracy and the lack of emergency communication capabilities in the black box,this paper proposes a beacon and emergency communication system integrating multi-band signal transmission,BeiDou/GPS dual-mode positioning,and satellite/wireless heterogeneous communication.Initially,the functional and performance requirements,system design scheme,and component composition are presented.Subsequently,the hardware and software design of the system are detailed,followed by the functional verification process.